At the airport, do business travelers walk at a different pace than leisure travelers? A researcher measured the walking speed of business travelers and leisure travelers at two different airports. The findings are summarized below. Type of traveler Business Leisure Mean speed (ft/min) 272 261 St. Dev. (ft/min) 43 47 sample size 20 20
Inverse Normal Distribution
The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.
Mean, Median, Mode
It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.
Z-Scores
A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.
![At the airport, do business travelers walk at a different pace than leisure travelers? A researcher
measured the walking speed of business travelers and leisure travelers at two different airports.
The findings are summarized below.
Type of traveler
Business
Leisure
Mean speed (ft/min)
272
261
St. Dev. (ft/min)
43
47
sample size
20
20
Is this observational or designed experiment? [Select ]
Since [Select]
for each sample, the distributions must be normally
distributed. Assume a QQ plot indicates that they are normally distributed and a box plot shows no
outliers.
Perform a hypothesis test to determine whether business travelers and leisure travelers walk at
different speeds at the airport.
Use calculator to get the test statistic. [ Select ]
p-value
[ Select ]
%3D
Conclusion. [ Select ]
What does that mean?
[ Select ]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5e7848f1-a2d6-4139-90c6-0b4560f9a4e8%2F135f342b-2bd3-4712-92c9-41d6db495438%2Fyr06wzj_processed.jpeg&w=3840&q=75)
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